The Benton County Jail is located at 7122 W. Okanogan Place (Building B) in Kennewick, Washington. The jail services all law enforcement agencies in Benton County as well as outside agencies on a contractual basis. We house an average daily population of 600 inmates with capacity for over 800 inmates. For more detailed information on the Benton County Sheriff’s Office Bureau of Corrections see our ‘About Us' page.